package lab03.test12;

import java.sql.*;

public class Test12 {
    public static void main(String[] args) {

        Connection connection = null;
        Statement statement = null;
        ResultSet resultSet = null;

        try {
            Class.forName("com.mysql.jdbc.Driver");
            connection = DriverManager.getConnection(
                    "jdbc:mysql://localhost:3306/java_2017?serverTimezone=UTC",
                    "root",
                    "123456"
            );

            statement = connection.createStatement();









 System.out.println("遍历:");
            resultSet = statement.executeQuery("SELECT * FROM t_users");
            while(resultSet.next()){
                System.out.print(resultSet.getInt(1)+" \t");
                System.out.print(resultSet.getString(2)+" \t");
                System.out.print(resultSet.getString(3)+" \t");
                System.out.print(resultSet.getLong(4)+" \t");
                System.out.println();
            }

            System.out.println("查询用户名为'admin'的记录:");
            resultSet = statement.executeQuery("select * from t_users WHERE username = 'admin'");
            while(resultSet.next()){
                System.out.print(resultSet.getInt(1)+" \t");
                System.out.print(resultSet.getString(2)+" \t");
                System.out.print(resultSet.getString(3)+" \t");
                System.out.print(resultSet.getLong(4)+" \t");
                System.out.println();
            }

            System.out.println("查询用户名为'admin'，密码为'123456'的记录:");
            resultSet = statement.executeQuery("select * from t_users WHERE username = 'admin' AND password = '123456'");
            while(resultSet.next()){
                System.out.print(resultSet.getInt(1)+" \t");
                System.out.print(resultSet.getString(2)+" \t");
                System.out.print(resultSet.getString(3)+" \t");
                System.out.print(resultSet.getLong(4)+" \t");
                System.out.println();
            }

            System.out.println("查询注册时间大于10000000的记录:");
            resultSet = statement.executeQuery("select * from t_users WHERE register_datetime > 10000000");
            while(resultSet.next()){
                System.out.print(resultSet.getInt(1)+" \t");
                System.out.print(resultSet.getString(2)+" \t");
                System.out.print(resultSet.getString(3)+" \t");
                System.out.print(resultSet.getLong(4)+" \t");
                System.out.println();
            }
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}
